During a decade of filming, the stars of Harry Potter have gone from precocious pre-teens to sexy stars. The final film premieres in the U.S. July 15. Here, actors Emma Watson (L), Daniel Radcliffe (C) and Rupert Grint (R) attend a press conference for the movie "Harry Potter and The Philosopher's Stone" in London on August 23, 2000. less

During a decade of filming, the stars of Harry Potter have gone from precocious pre-teens to sexy stars. The final film premieres in the U.S. July 15. Here, actors Emma Watson (L), Daniel Radcliffe (C) and ... more

Photo: Dave Hogan, Getty Images

During a decade of filming, the stars of Harry Potter have gone... Photo-1114210.16007 - seattlepi.com

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Emma Watson, who plays Hermione Grainger in the Harry Potter movies, arrives for the world premiere of 'Harry Potter and the Sorcerer 's Stone at the Odeon Leicester Square in London on November 4, 2001.

Emma Watson, who plays Hermione Grainger in the Harry Potter movies, arrives for the world premiere of 'Harry Potter and the Sorcerer 's Stone at the Odeon Leicester Square in London on November 4, 2001.

Actress Emma Watson attends the party for the World Premiere of "Harry Potter And The Goblet Of Fire" at The Natural History Museum on November 6, 2005 in London, England.

Actress Emma Watson attends the party for the World Premiere of "Harry Potter And The Goblet Of Fire" at The Natural History Museum on November 6, 2005 in London, England.

Photo: Dave Hogan, Getty Images

Actress Emma Watson attends the party for the World Premiere of... Photo-1114219.16007 - seattlepi.com

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Emma Watson attends the "Harry Potter And The Order Of The Phoenix" UK premiere held at the Odeon Leicester Square on July 3, 2007 in London.

Emma Watson attends the "Harry Potter And The Order Of The Phoenix" UK premiere held at the Odeon Leicester Square on July 3, 2007 in London.

Photo: MJ Kim, Getty Images

Emma Watson attends the "Harry Potter And The Order Of The... Photo-1114223.16007 - seattlepi.com

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LONDON, ENGLAND - JULY 07: Emma Watson arrives as the rain pours down at the World Premiere of Harry Potter And The Half Blood Prince at Empire Leicester Square on July 7, 2009 in London, England. (Photo by Tim Whitby/Getty Images) *** Local Caption *** Emma Watson less

LONDON, ENGLAND - JULY 07: Emma Watson arrives as the rain pours down at the World Premiere of Harry Potter And The Half Blood Prince at Empire Leicester Square on July 7, 2009 in London, England. (Photo by ... more

British actor Daniel Radcliffe, who stars as Harry Potter, arrives for the world premiere of the film 'Harry Potter and the Sorcerer's Stone' at the Odeon cinema in Leicester Square, London on November 4, 2001.

British actor Daniel Radcliffe, who stars as Harry Potter, arrives for the world premiere of the film 'Harry Potter and the Sorcerer's Stone' at the Odeon cinema in Leicester Square, London on November 4, 2001.

Actor Rupert Grint attends the New York premiere of "Harry Potter And The Deathly Hallows: Part 2" at Avery Fisher Hall, Lincoln Center on July 11, 2011 in New York City.

Actor Rupert Grint attends the New York premiere of "Harry Potter And The Deathly Hallows: Part 2" at Avery Fisher Hall, Lincoln Center on July 11, 2011 in New York City.

Photo: Stephen Lovekin, Getty Images

Actor Rupert Grint attends the New York premiere of "Harry... Photo-1114207.16007 - seattlepi.com

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(L-R) Rupert Grint, Daniel Radcliffe and Emma Watson attend the New York premiere of "Harry Potter And The Deathly Hallows: Part 2" at Avery Fisher Hall, Lincoln Center on July 11, 2011 in New York City.

(L-R) Rupert Grint, Daniel Radcliffe and Emma Watson attend the New York premiere of "Harry Potter And The Deathly Hallows: Part 2" at Avery Fisher Hall, Lincoln Center on July 11, 2011 in New York City.